package com.dgut.coal.global;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * @Author: Yang
 * @Description:
 * @Date: Created in 16:14 2019/9/28
 * @Modifued BY:
 */
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String url = request.getRequestURI();

        if(url.toLowerCase().indexOf("login")>=0){
            return true;
        }
        if(url.toLowerCase().indexOf("main")>=0){
            return true;
        }
        HttpSession session = request.getSession();
        if(session.getAttribute("user") != null){
            return true;
        }

        response.sendRedirect("/main");
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}
